public async Task StopServiceWithWorkUngracefulShutdown()
{
var cancellationTokenSource = new CancellationTokenSource();
int stopCheckDelay = 300;
var service = new BackgroundWorkerService();
await service.StartAsync(cancellationTokenSource.Token);
bool allowStop = false;
bool cancellationWasCalled = false;
var workTask = CreateTestTaskAsync(stopCheckDelay, cancellationToken =>
{
if (allowStop)
{
cancellationWasCalled = cancellationToken.IsCancellationRequested;
return(false);
}
return(true);
});
service.RunAsync(workTask);
service.Dispose();
Assert.IsFalse(service.IsStarted, "Service was still runing despite being disposed");
Assert.IsTrue(service.IsProcessingTasks, "Service was not processing unfinished work when disposed");
allowStop = true;
var waitDelay = stopCheckDelay * 2;
await Task.Delay(waitDelay); // Make sure our work has a chance to react
Assert.IsFalse(service.IsProcessingTasks, $"Service was still processing work { waitDelay } milliseconds after stopping");
Assert.IsTrue(cancellationWasCalled, "Cancellation was not called");
}
public void Teardown()
{
if (_service != null)
{
_service.Dispose();
}
}